Preparation and characterization of nanofiber nonwoven textile for electromagnetic wave shielding

A nanofiber nonwoven textile with metallic magnetic material coating was fabricated, and the effect of electromagnetic wave shielding was evaluated. The nanofiber nonwoven textile with an average diameter of about 500 nm was spun by electrospinning. The metallic magnetic material was coated by sputtering on the textile surface. EMI shielding effect of the textile with metallic magnetic material coating was about 90% in the GHz band. Because the textile has thin, light, flexible, and breathable characteristics, it will be versatile for various electromagnetic wave shielding applications. Index Terms--Electromagnetic wave shielding, electrospinning, metallic magnetic material, nanofiber nonwoven textile, sputtering.